Tire-heater



(No Model.) 2 Sheets-Sheet 1.

J. A. GALLAWAYQ TIRE HEATER.

No. 521,928. v Patented June 26, 1894.

Jo/m J. gumm n l mu. umoeRAPHme ccmnuv 2 Sheets-Sheet 2.

(No' Model.)

J. A. OALLAWAY.

TIRHHEYATER.

Patented June 26, 1894.

. I UNITEDfSTATEsPATENT OFFICE.)

JOHN A. OALLAWAY, LAMPASAS, TEXAS.

TIRE-HEATER.

SPECIFICATION forming part of Letters Patent No. 521,928, dated June 26,1 894..

Application filed October 12, 1893.

To a /Z? whom it may concern:

13o it known that 1, J OHN A. CALLAWVAY,"2L c1t1zen of the UnitedStates, residing at Lampasas, 1n the county of Lampasas and State ofTexas, have invented a new and useful Tlre-Heater, of which thefollowing is a specificaiion.

My invention relates to a rotary, tire-heater, and it has for its objectto provide a device for use in connection with a blacksmiths forge, andwhich may be movably supported 1n the vicinity of the forge, whereby itmay be swung into operative position or out of the way, as may berequired; and furthermore, to provlde means whereby the heat in passingthrough the device is concentrated upon the tire, whereby time and fuelare economized, and to provide means for automatically adjusting therests to take up the expansion of the tire.

Further objects and advantages of this inventlon will appear in thefollowing descriptron, and the novel features thereof will bepartlcularly pointed out in the appended claims.

In thedrawings: Figure 1 is a perspective view of a heater embodying myinvention arranged in operative position over a forge. Fig. 2 1s a rear'View of the same. Fig. 3 is a front view with the door open. Fig. 4: isa transverse vertical section on the line 4-4 of Fig. 3.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings. 7 n

1 designates a circular casing, provided with a hinged front side ordoor 2, having a suitable fastening device or hasp 3. The front and rearsides of the casing are provided with central aligned openings 4:, ahood 5 is arranged at the bottom of the casing to fit over and receivethe heat, from the forge, and an outlet or flue 6 is provided at the top'of the casing.

7 represents a vertical guide, whiclr is secured to the rear side of thecasing, and 8 rep resents a slide, which is mounted for verticalmovement in the guide and carries a bracket 9, having a bearing 10,which is aligned with a corresponding bearing 11 in the slide.

12 represents a shaft, which is rotatably mounted in said bearings andextends Serial 110.487,!361. (No model.)

through a vertical slot 13 in the guide. Fixed to this shaft is a spider14, comprising the ra ldial arms 15 and the circular band 16, which,

in wi(lth,is equal to the interval between the front and rear sides ofthe casing, whereby when the front side or door of the casing is closedan annular chamber, which I will term a heating chamber, isformedbetween said band and the exterior circular wall of the casing.Communicating with thisheating chamber are the hood and outlet or flueabove described.

17 represents an adjusting lever which is pivoted to the rear side ofthe casing and is connected, by means of a rod or similar device 18, tothe bracket upon the rear side of the slide, said lever being providedwith a detent 19 to'engage the teeth of a segmental rack 20, whereby theslide and the spider supported thereby may be elevated and lowered inthe casing and secured at the desired vertical adjustment. Slidablymounted upon the arms of the spider are the extension-bars 21, which areprovided beyond the outer sur-.

faces of the band or periphery of the spider with T-shaped'heads orrests 22, which are adapted to bear against the inner surface of atire23, as shown in Fig.3. Slidably mounted upon the shaft is a sleeve 24,which is connected, by pivotal brace-bars 25, to the extension-arms 21,whereby, when the sleeve is moved inwardly or toward the spider, saidarms 21 are extended; A collar 26 is fitted upon the shaft and isprovided with a setscrew 27, whereby it may be locked in any desiredposition, and between saidrcollar and the outer end of the sleeve isarranged a tension-spring '28. A handle 29 is fixed to the outer end ofthe shaft,whereby the spider may be rotated during the heating of thetire.

When the tire is applied to the spider, the arms 21 are extended tocause the T-shaped heads carried thereby to bear snugly against theinner surface of the tire, and the adj netable collar is forced towardthe sleeve to contract the interposed spring.

Therefore, as

IOO

sion-arms are capable of adjustment to fit either a large or a smalltire.

The casing is preferably hinged to a vertical supporter post 30, wherebyit may be moved over the forge or swung back out of the way when not inuse; and a retaining-rod 31, which is connected to the casing, isadapted to be engaged in an eye carried by the post to hold the casingin position when over the forge.

Various changes in the form, proportion, and the minor details ofconstruction within the scope of the appended claims maybe resorted towithout departing from the principle or sacrificing any of theadvantages of this invention.

Having described my invention, what I claim is-- 1. In a tire-heater,the combination of a circular casing provided at its bottom with a hoodand at its top with an outlet, a rotary spider arranged within thecasing and having a peripheral band of equal width with the interior ofthe casing to form an annular surrounding heating-chamber, rests carriedby the spider to engage the tire, and means for rotating the spider,substantially as specified.

2. The combination with a casing provided in its lower side with a hoodand in its upper side with an outlet, of an annular band arranged withinthe casing to form an annular heating chamber, a spider supporting saidband, a slide mounted in a suitable vertical guide and having bearingsin which the shaft of said spider is mounted, and adjusting devices forsecuring the slide, spider and band at the desired vertical adjustment,substantially as specified.

3, The combination with a casing, of a r0- tary spider, movable restscarried by said s pider, and spring-actuated means for automaticallyadjusting the rests radially, substantially as specified.

t. The combination with a casing, of a r0- tary spider, extension-barsslidably mounted upon said spider and provided with terminal rests orheads, a sleeve mounted upon the shaft of the spider, and connected bybracebars with said extension-bars, and a tension device connected tothe sleeve to automatically extend the extension-bars, substantially asspecified.

5. The combination with a casing, of a retary spider, extension-barsslidably mounted upon said spider and provided with terminal T-shapedrests or heads, a sleeve slidabl y mounted upon the shaftof the spider,bracing-bars connecting said sleeve to the extension-bars, an adjustablecollar upon the shaft, and a tension spring interposed between saidcollar and the sleeve, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of-two witnesses.

J N O. A. OALLAVVAY.

Witnesses:

E. N. WOLF, W. E. ADKINS.

